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<font color='#009900'>// Copyright (C) 2005  Davis E. King (davis@dlib.net), and Nils Labugt, Keita Mochizuki
</font><font color='#009900'>// License: Boost Software License   See LICENSE.txt for the full license.
</font>
<font color='#0000FF'>#ifndef</font> DLIB_FONTs_
<font color='#0000FF'>#define</font> DLIB_FONTs_

<font color='#0000FF'>#include</font> <font color='#5555FF'>&lt;</font>memory<font color='#5555FF'>&gt;</font>
<font color='#0000FF'>#include</font> <font color='#5555FF'>&lt;</font>string<font color='#5555FF'>&gt;</font>

<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='fonts_abstract.h.html'>fonts_abstract.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../algs.h.html'>../algs.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../serialize.h.html'>../serialize.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../unicode.h.html'>../unicode.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../array.h.html'>../array.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../array2d.h.html'>../array2d.h</a>"
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='../threads.h.html'>../threads.h</a>"

<font color='#0000FF'>namespace</font> dlib
<b>{</b>

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>class</font> <b><a name='letter'></a>letter</b> 
    <b>{</b>    
        <font color='#009900'>/*!
            INITIAL VALUE
                - defined by constructor

            CONVENTION
                - if (points != 0) then
                    - points == an array of count point structs
                - w == width()
                - count == num_of_points()
        !*/</font>
    <font color='#0000FF'>public</font>:
        <font color='#0000FF'>struct</font> <b><a name='point'></a>point</b> 
        <b>{</b>
            <b><a name='point'></a>point</b> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><b>{</b><b>}</b>

            <b><a name='point'></a>point</b> <font face='Lucida Console'>(</font>
                <font color='#0000FF'><u>signed</u></font> <font color='#0000FF'><u>char</u></font> x_,
                <font color='#0000FF'><u>signed</u></font> <font color='#0000FF'><u>char</u></font> y_
            <font face='Lucida Console'>)</font> :
                x<font face='Lucida Console'>(</font>x_<font face='Lucida Console'>)</font>,
                y<font face='Lucida Console'>(</font>y_<font face='Lucida Console'>)</font>
            <b>{</b><b>}</b>

            <font color='#0000FF'><u>signed</u></font> <font color='#0000FF'><u>char</u></font> x;
            <font color='#0000FF'><u>signed</u></font> <font color='#0000FF'><u>char</u></font> y;
        <b>}</b>;

        <b><a name='letter'></a>letter</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> :
            points<font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>,
            w<font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>,
            count<font face='Lucida Console'>(</font><font color='#979000'>0</font><font face='Lucida Console'>)</font>
        <b>{</b><b>}</b>

        <b><a name='letter'></a>letter</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> width_,
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> point_count
        <font face='Lucida Console'>)</font> : 
            points<font face='Lucida Console'>(</font><font color='#0000FF'>new</font> point[point_count]<font face='Lucida Console'>)</font>,
            w<font face='Lucida Console'>(</font>width_<font face='Lucida Console'>)</font>,
            count<font face='Lucida Console'>(</font>point_count<font face='Lucida Console'>)</font>
        <b>{</b><b>}</b>

        ~<b><a name='letter'></a>letter</b><font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font>
        <b>{</b>
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>points<font face='Lucida Console'>)</font>
                <font color='#0000FF'>delete</font> [] points; 
        <b>}</b>
            
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> <b><a name='width'></a>width</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> w; <b>}</b>
        
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> <b><a name='num_of_points'></a>num_of_points</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> count;<b>}</b>

        point<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font>
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> i
        <font face='Lucida Console'>)</font> 
        <b>{</b> 
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font>i <font color='#5555FF'>&lt;</font> <font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                    "<font color='#CC0000'>\tvoid letter::operator[]()</font>"
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\ti:               </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> i 
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tnum_of_points(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;
            <font color='#0000FF'>return</font> points[i]; 
        <b>}</b>

        <font color='#0000FF'>const</font> point<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font>
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> i
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> 
        <b>{</b> 
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font>i <font color='#5555FF'>&lt;</font> <font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                    "<font color='#CC0000'>\tvoid letter::operator[]()</font>"
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\ti:               </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> i 
                    <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tnum_of_points(): </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;
            <font color='#0000FF'>return</font> points[i]; 
        <b>}</b>
    
        <font color='#0000FF'>friend</font> <font color='#0000FF'><u>void</u></font> <b><a name='serialize'></a>serialize</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> item, 
            std::ostream<font color='#5555FF'>&amp;</font> out 
        <font face='Lucida Console'>)</font>;   

        <font color='#0000FF'>friend</font> <font color='#0000FF'><u>void</u></font> <b><a name='deserialize'></a>deserialize</b> <font face='Lucida Console'>(</font>
            letter<font color='#5555FF'>&amp;</font> item, 
            std::istream<font color='#5555FF'>&amp;</font> in
        <font face='Lucida Console'>)</font>;   

        <font color='#0000FF'><u>void</u></font> <b><a name='swap'></a>swap</b> <font face='Lucida Console'>(</font>
            letter<font color='#5555FF'>&amp;</font> item
        <font face='Lucida Console'>)</font>
        <b>{</b>
            <font color='#BB00BB'>exchange</font><font face='Lucida Console'>(</font>points, item.points<font face='Lucida Console'>)</font>;
            <font color='#BB00BB'>exchange</font><font face='Lucida Console'>(</font>w, item.w<font face='Lucida Console'>)</font>;
            <font color='#BB00BB'>exchange</font><font face='Lucida Console'>(</font>count, item.count<font face='Lucida Console'>)</font>;
        <b>}</b>

    <font color='#0000FF'>private</font>:
        <font color='#009900'>// restricted functions
</font>        <b><a name='letter'></a>letter</b><font face='Lucida Console'>(</font>letter<font color='#5555FF'>&amp;</font><font face='Lucida Console'>)</font>;        <font color='#009900'>// copy constructor
</font>        letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b><font color='#5555FF'>=</font><font face='Lucida Console'>(</font>letter<font color='#5555FF'>&amp;</font><font face='Lucida Console'>)</font>;    <font color='#009900'>// assignment operator
</font>
        point<font color='#5555FF'>*</font> points;
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> w;
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> count;
    <b>}</b>;

    <font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='swap'></a>swap</b> <font face='Lucida Console'>(</font>
        letter<font color='#5555FF'>&amp;</font> a,
        letter<font color='#5555FF'>&amp;</font> b
    <font face='Lucida Console'>)</font> <b>{</b> a.<font color='#BB00BB'>swap</font><font face='Lucida Console'>(</font>b<font face='Lucida Console'>)</font>; <b>}</b>

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>class</font> <b><a name='font'></a>font</b>
    <b>{</b>
    <font color='#0000FF'>public</font>:
        <font color='#0000FF'>virtual</font> ~<b><a name='font'></a>font</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b><b>}</b>

        <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>bool</u></font> <b><a name='has_character'></a>has_character</b> <font face='Lucida Console'>(</font>
            unichar ch
        <font face='Lucida Console'>)</font><font color='#0000FF'>const</font><font color='#5555FF'>=</font><font color='#979000'>0</font>;
        <font color='#0000FF'><u>bool</u></font> <b><a name='has_character'></a>has_character</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> ch<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>    <b>{</b> <font color='#0000FF'>return</font> <font color='#0000FF'>this</font><font color='#5555FF'>-</font><font color='#5555FF'>&gt;</font><font color='#BB00BB'>has_character</font><font face='Lucida Console'>(</font>zero_extend_cast<font color='#5555FF'>&lt;</font>unichar<font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>ch<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>
        <font color='#0000FF'><u>bool</u></font> <b><a name='has_character'></a>has_character</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>wchar_t</u></font> ch<font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font color='#0000FF'>this</font><font color='#5555FF'>-</font><font color='#5555FF'>&gt;</font><font color='#BB00BB'>has_character</font><font face='Lucida Console'>(</font>zero_extend_cast<font color='#5555FF'>&lt;</font>unichar<font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>ch<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b>

        <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> ch<font face='Lucida Console'>)</font>   <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font><font color='#0000FF'>this</font><font face='Lucida Console'>)</font>[zero_extend_cast<font color='#5555FF'>&lt;</font>unichar<font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>ch<font face='Lucida Console'>)</font>]; <b>}</b>;
        <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font><font color='#0000FF'><u>wchar_t</u></font> ch<font face='Lucida Console'>)</font><font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font face='Lucida Console'>(</font><font color='#5555FF'>*</font><font color='#0000FF'>this</font><font face='Lucida Console'>)</font>[zero_extend_cast<font color='#5555FF'>&lt;</font>unichar<font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>ch<font face='Lucida Console'>)</font>]; <b>}</b>;

        <font color='#0000FF'>virtual</font> <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font>
            unichar ch
        <font face='Lucida Console'>)</font><font color='#0000FF'>const</font><font color='#5555FF'>=</font><font color='#979000'>0</font>;

        <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='height'></a>height</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

        <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='ascender'></a>ascender</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

        <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='left_overflow'></a>left_overflow</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

        <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='right_overflow'></a>right_overflow</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

    <font color='#009900'>// ------------------------------------------------------------------------------------
</font>
        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> traits, <font color='#0000FF'>typename</font> alloc<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'><u>void</u></font> <b><a name='compute_size'></a>compute_size</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> str,
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&amp;</font> width,
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&amp;</font> height,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type first <font color='#5555FF'>=</font> <font color='#979000'>0</font>,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type last <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::npos<font face='Lucida Console'>)</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>typedef</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font> string;
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>first <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> last <font color='#5555FF'>&lt;</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>  ,
                          "<font color='#CC0000'>\tvoid font::compute_size()</font>"
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast == string::npos: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>?"<font color='#CC0000'>true</font>":"<font color='#CC0000'>false</font>"<font face='Lucida Console'>)</font> 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tfirst: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>first 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>last 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tstr.size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;

            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> line_width <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> newlines <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            width <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            height <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>
                    last <font color='#5555FF'>=</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font>;
                <font color='#0000FF'>const</font> font<font color='#5555FF'>&amp;</font> f <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;

                <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'>typename</font> string::size_type i <font color='#5555FF'>=</font> first; i <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#009900'>// ignore '\r' characters
</font>                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>'<font face='Lucida Console'>)</font>
                        <font color='#0000FF'>continue</font>;

                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
                    <b>{</b>
                        <font color='#5555FF'>+</font><font color='#5555FF'>+</font>newlines;
                        width <font color='#5555FF'>=</font> std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>width,line_width<font face='Lucida Console'>)</font>;
                        line_width <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
                    <b>}</b>
                    <font color='#0000FF'>else</font>
                    <b>{</b>
                        <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_combining_char</font><font face='Lucida Console'>(</font>str[i]<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>false</font><font face='Lucida Console'>)</font>
                            line_width <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f[str[i]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    <b>}</b>
                <b>}</b>
                width <font color='#5555FF'>=</font> std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font>width,line_width<font face='Lucida Console'>)</font>;

                height <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>newlines<font color='#5555FF'>+</font><font color='#979000'>1</font><font face='Lucida Console'>)</font><font color='#5555FF'>*</font>f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                width <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> f.<font color='#BB00BB'>right_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <b>}</b>
        <b>}</b>

    <font color='#009900'>// ------------------------------------------------------------------------------------
</font>
        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> C, <font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> traits, <font color='#0000FF'>typename</font> alloc, <font color='#0000FF'>typename</font> pixel_type<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'><u>void</u></font> <b><a name='draw_string'></a>draw_string</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> C<font color='#5555FF'>&amp;</font> c,
            <font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&amp;</font> rect,
            <font color='#0000FF'>const</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> str,
            <font color='#0000FF'>const</font> pixel_type<font color='#5555FF'>&amp;</font> color,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type first <font color='#5555FF'>=</font> <font color='#979000'>0</font>,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type last <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::npos<font face='Lucida Console'>)</font>,
            <font color='#0000FF'>const</font> rectangle area_ <font color='#5555FF'>=</font> <font color='#BB00BB'>rectangle</font><font face='Lucida Console'>(</font>std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                                            std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>typedef</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font> string;
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>first <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> last <font color='#5555FF'>&lt;</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>  ,
                          "<font color='#CC0000'>\tvoid font::draw_string()</font>"
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast == string::npos: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>?"<font color='#CC0000'>true</font>":"<font color='#CC0000'>false</font>"<font face='Lucida Console'>)</font> 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tfirst: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>first 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>last 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tstr.size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;

            rectangle area <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>intersect</font><font face='Lucida Console'>(</font>c<font face='Lucida Console'>)</font>.<font color='#BB00BB'>intersect</font><font face='Lucida Console'>(</font>area_<font face='Lucida Console'>)</font>;
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area.<font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font>;

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>
                last <font color='#5555FF'>=</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font>;

            <font color='#0000FF'>const</font> font<font color='#5555FF'>&amp;</font> f <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;        

            <font color='#0000FF'><u>long</u></font> y_offset <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> f.<font color='#BB00BB'>ascender</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#979000'>1</font>;

            <font color='#0000FF'><u>long</u></font> pos <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'>typename</font> string::size_type i <font color='#5555FF'>=</font> first; i <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#009900'>// ignore the '\r' character
</font>                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>'<font face='Lucida Console'>)</font>
                    <font color='#0000FF'>continue</font>;

                <font color='#009900'>// A combining character should be applied to the previous character, and we
</font>                <font color='#009900'>// therefore make one step back. If a combining comes right after a newline, 
</font>                <font color='#009900'>// then there must be some kind of error in the string, and we don't combine.
</font>                <font color='#0000FF'>if</font><font face='Lucida Console'>(</font><font color='#BB00BB'>is_combining_char</font><font face='Lucida Console'>(</font>str[i]<font face='Lucida Console'>)</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> 
                   pos <font color='#5555FF'>&gt;</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                <b>{</b>
                    pos <font color='#5555FF'>-</font><font color='#5555FF'>=</font> f[str[i]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                <b>}</b>

                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
                <b>{</b>
                    y_offset <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    pos <font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>+</font>f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    <font color='#0000FF'>continue</font>;
                <b>}</b>

                <font color='#009900'>// only look at letters in the intersection area
</font>                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area.<font color='#BB00BB'>bottom</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&lt;</font> y_offset<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#009900'>// the string is now below our rectangle so we are done
</font>                    <font color='#0000FF'>break</font>;
                <b>}</b>
                <font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&gt;</font> pos <font color='#5555FF'>-</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> 
                    pos <font color='#5555FF'>+</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>f[str[i]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> f.<font color='#BB00BB'>right_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&lt;</font> area.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>
                <b>{</b>
                    pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f[str[i]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;                
                    <font color='#0000FF'>continue</font>;
                <b>}</b>
                <font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area.<font color='#BB00BB'>right</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>f.<font color='#BB00BB'>right_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&lt;</font> pos<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#009900'>// keep looking because there might be a '\n' in the string that
</font>                    <font color='#009900'>// will wrap us around and put us back into our rectangle.
</font>                    <font color='#0000FF'>continue</font>;
                <b>}</b>

                <font color='#009900'>// at this point in the loop we know that f[str[i]] overlaps 
</font>                <font color='#009900'>// horizontally with the intersection rectangle area.
</font>
                <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> l <font color='#5555FF'>=</font> f[str[i]];
                <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>short</u></font> i <font color='#5555FF'>=</font> <font color='#979000'>0</font>; i <font color='#5555FF'>&lt;</font> l.<font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#0000FF'>const</font> <font color='#0000FF'><u>long</u></font> x <font color='#5555FF'>=</font> l[i].x <font color='#5555FF'>+</font> pos;
                    <font color='#0000FF'>const</font> <font color='#0000FF'><u>long</u></font> y <font color='#5555FF'>=</font> l[i].y <font color='#5555FF'>+</font> y_offset;
                    <font color='#009900'>// draw each pixel of the letter if it is inside the intersection
</font>                    <font color='#009900'>// rectangle
</font>                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>area.<font color='#BB00BB'>contains</font><font face='Lucida Console'>(</font>x,y<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                    <b>{</b>
                        <font color='#BB00BB'>assign_pixel</font><font face='Lucida Console'>(</font>c[y<font color='#5555FF'>-</font>c.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>][x<font color='#5555FF'>-</font>c.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>], color<font face='Lucida Console'>)</font>;
                    <b>}</b>
                <b>}</b>

                pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> l.<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <b>}</b>
        <b>}</b>
        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> C, <font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> traits, <font color='#0000FF'>typename</font> alloc<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'><u>void</u></font> <b><a name='draw_string'></a>draw_string</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> C<font color='#5555FF'>&amp;</font> c,
            <font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&amp;</font> rect,
            <font color='#0000FF'>const</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> str
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> 
        <b>{</b> 
            <font color='#BB00BB'>draw_string</font><font face='Lucida Console'>(</font>c,rect, str, <font color='#979000'>0</font>, <font color='#979000'>0</font>, <font face='Lucida Console'>(</font>std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::npos<font face='Lucida Console'>)</font>, 
                        <font color='#BB00BB'>rectangle</font><font face='Lucida Console'>(</font>std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>min</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>,
                                  std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>, std::numeric_limits<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font>::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; 
        <b>}</b>

    <font color='#009900'>// ------------------------------------------------------------------------------------
</font>
        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> traits, <font color='#0000FF'>typename</font> alloc<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'>const</font> rectangle <b><a name='compute_cursor_rect'></a>compute_cursor_rect</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&amp;</font> rect,
            <font color='#0000FF'>const</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> str,
            <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> index,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type first <font color='#5555FF'>=</font> <font color='#979000'>0</font>,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type last <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::npos<font face='Lucida Console'>)</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>typedef</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font> string;
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>first <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> last <font color='#5555FF'>&lt;</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>  ,
                          "<font color='#CC0000'>\trectangle font::compute_cursor_rect()</font>"
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast == string::npos: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>?"<font color='#CC0000'>true</font>":"<font color='#CC0000'>false</font>"<font face='Lucida Console'>)</font> 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tfirst: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>first 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>last 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tindex:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> index
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tstr.size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;

            <font color='#0000FF'>const</font> font<font color='#5555FF'>&amp;</font> f <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>
                last <font color='#5555FF'>=</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font>;

            <font color='#0000FF'><u>long</u></font> x <font color='#5555FF'>=</font> f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <font color='#0000FF'><u>long</u></font> y <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            <font color='#0000FF'><u>int</u></font> count <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'>typename</font> string::size_type i <font color='#5555FF'>=</font> first; i <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> i <font color='#5555FF'>&lt;</font> index; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#5555FF'>+</font><font color='#5555FF'>+</font>count;
                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
                    <b>{</b>
                        x <font color='#5555FF'>=</font> f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                        y <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                        count <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
                    <b>}</b>
                    <font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_combining_char</font><font face='Lucida Console'>(</font>str[i]<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>false</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> 
                             str[i] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>'<font face='Lucida Console'>)</font>
                    <b>{</b>
                        x <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f[str[i]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    <b>}</b>
                <b>}</b>
            <b>}</b>

            x <font color='#5555FF'>+</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            y <font color='#5555FF'>+</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;

            <font color='#009900'>// if the cursor is at the start of a line then back it up one pixel
</font>            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>count <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                <font color='#5555FF'>-</font><font color='#5555FF'>-</font>x;

            <font color='#0000FF'>return</font> <font color='#BB00BB'>rectangle</font><font face='Lucida Console'>(</font>x,y,x,y<font color='#5555FF'>+</font>f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>;
        <b>}</b>

    <font color='#009900'>// ------------------------------------------------------------------------------------
</font>
        <font color='#0000FF'>template</font> <font color='#5555FF'>&lt;</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> traits, <font color='#0000FF'>typename</font> alloc<font color='#5555FF'>&gt;</font>
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='compute_cursor_pos'></a>compute_cursor_pos</b> <font face='Lucida Console'>(</font>
            <font color='#0000FF'>const</font> rectangle<font color='#5555FF'>&amp;</font> rect,
            <font color='#0000FF'>const</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> str,
            <font color='#0000FF'><u>long</u></font> x,
            <font color='#0000FF'><u>long</u></font> y,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type first <font color='#5555FF'>=</font> <font color='#979000'>0</font>,
            <font color='#0000FF'>typename</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::size_type last <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font>::npos<font face='Lucida Console'>)</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>typedef</font> std::basic_string<font color='#5555FF'>&lt;</font>T,traits,alloc<font color='#5555FF'>&gt;</font> string;
            <font color='#BB00BB'>DLIB_ASSERT</font> <font face='Lucida Console'>(</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>first <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> last <font color='#5555FF'>&lt;</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>  ,
                          "<font color='#CC0000'>\tunsigned long font::compute_cursor_pos()</font>"
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast == string::npos: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>?"<font color='#CC0000'>true</font>":"<font color='#CC0000'>false</font>"<font face='Lucida Console'>)</font> 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tfirst: </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>first 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tlast:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>last 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tx:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> x 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\ty:  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> y 
                          <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> "<font color='#CC0000'>\n\tstr.size():  </font>" <font color='#5555FF'>&lt;</font><font color='#5555FF'>&lt;</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font face='Lucida Console'>)</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;
            <font color='#0000FF'>const</font> font<font color='#5555FF'>&amp;</font> f <font color='#5555FF'>=</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>;


            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font> <font color='#979000'>0</font>;
            <font color='#0000FF'>else</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>first <font color='#5555FF'>&gt;</font><font color='#5555FF'>=</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;

            y <font color='#5555FF'>-</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            x <font color='#5555FF'>-</font><font color='#5555FF'>=</font> rect.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>y <font color='#5555FF'>&lt;</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                y <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>x <font color='#5555FF'>&lt;</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                x <font color='#5555FF'>=</font> <font color='#979000'>0</font>;

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>last <font color='#5555FF'>=</font><font color='#5555FF'>=</font> string::npos<font face='Lucida Console'>)</font>
                last <font color='#5555FF'>=</font> str.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font color='#5555FF'>-</font><font color='#979000'>1</font>;


            <font color='#009900'>// first figure out what line we are on
</font>            <font color='#0000FF'>typename</font> string::size_type pos <font color='#5555FF'>=</font> first;
            <font color='#0000FF'><u>long</u></font> line <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
            <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font><font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>y<font face='Lucida Console'>)</font> <font color='#5555FF'>&gt;</font><font color='#5555FF'>=</font> f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#5555FF'>+</font><font color='#5555FF'>+</font>line;
                y <font color='#5555FF'>-</font><font color='#5555FF'>=</font> f.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <b>}</b>

            <font color='#009900'>// find the start of the given line
</font>            <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font><font color='#0000FF'>typename</font> string::size_type i <font color='#5555FF'>=</font> first; i <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> line <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#5555FF'>+</font><font color='#5555FF'>+</font>i<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>str[i] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#5555FF'>-</font><font color='#5555FF'>-</font>line;
                    pos <font color='#5555FF'>=</font> i <font color='#5555FF'>+</font> <font color='#979000'>1</font>;
                <b>}</b>
            <b>}</b>


            <font color='#009900'>// now str[pos] == the first character of the start of the line
</font>            <font color='#009900'>// that contains the cursor.
</font>            <font color='#0000FF'>const</font> <font color='#0000FF'>typename</font> string::size_type start_of_line <font color='#5555FF'>=</font> pos;


            <font color='#0000FF'><u>long</u></font> cur_x <font color='#5555FF'>=</font> f.<font color='#BB00BB'>left_overflow</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
            <font color='#009900'>// set the current cursor position to where the mouse clicked
</font>            <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>pos <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> last<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>x <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> cur_x <font color='#5555FF'>|</font><font color='#5555FF'>|</font> str[pos] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\n</font>'<font face='Lucida Console'>)</font>
                    <font color='#0000FF'>break</font>;

                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>is_combining_char</font><font face='Lucida Console'>(</font>str[pos]<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>false</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font>
                    str[pos] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> '<font color='#FF0000'>\r</font>'<font face='Lucida Console'>)</font>
                <b>{</b>
                    cur_x <font color='#5555FF'>+</font><font color='#5555FF'>=</font> f[str[pos]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                <b>}</b>
                <font color='#5555FF'>+</font><font color='#5555FF'>+</font>pos;
            <b>}</b>

            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>x <font color='#5555FF'>&lt;</font><font color='#5555FF'>=</font> cur_x<font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>pos <font color='#5555FF'>!</font><font color='#5555FF'>=</font> start_of_line<font face='Lucida Console'>)</font>
                <b>{</b>
                    <font color='#009900'>// we might actually be closer to the previous character 
</font>                    <font color='#009900'>// so check for that and if so then jump us back one.
</font>                    <font color='#0000FF'>const</font> <font color='#0000FF'><u>long</u></font> width <font color='#5555FF'>=</font> f[str[pos<font color='#5555FF'>-</font><font color='#979000'>1</font>]].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
                    <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>x <font color='#5555FF'>&lt;</font> cur_x <font color='#5555FF'>-</font> width<font color='#5555FF'>/</font><font color='#979000'>2</font><font face='Lucida Console'>)</font>
                        <font color='#5555FF'>-</font><font color='#5555FF'>-</font>pos;
                <b>}</b>
            <b>}</b>
            <font color='#0000FF'>return</font> <font color='#0000FF'>static_cast</font><font color='#5555FF'>&lt;</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font><font color='#5555FF'>&gt;</font><font face='Lucida Console'>(</font>pos<font face='Lucida Console'>)</font>;
        <b>}</b>

    <b>}</b>;

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>const</font> std::shared_ptr<font color='#5555FF'>&lt;</font>font<font color='#5555FF'>&gt;</font> <b><a name='get_native_font'></a>get_native_font</b> <font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;

<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>class</font> <b><a name='default_font'></a>default_font</b> : <font color='#0000FF'>public</font> font
    <b>{</b>
        letter<font color='#5555FF'>*</font> l;


        <b><a name='default_font'></a>default_font</b><font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font>;
        <b><a name='default_font'></a>default_font</b><font face='Lucida Console'>(</font>default_font<font color='#5555FF'>&amp;</font><font face='Lucida Console'>)</font>;        <font color='#009900'>// copy constructor
</font>        default_font<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b><font color='#5555FF'>=</font><font face='Lucida Console'>(</font>default_font<font color='#5555FF'>&amp;</font><font face='Lucida Console'>)</font>;    <font color='#009900'>// assignment operator   
</font>


    <font color='#0000FF'>public</font>:
        <font color='#0000FF'>static</font> <font color='#0000FF'>const</font> std::shared_ptr<font color='#5555FF'>&lt;</font>font<font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> <b><a name='get_font'></a>get_font</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font>
        <b>{</b>        
            <font color='#0000FF'>static</font> mutex m;
            <font color='#0000FF'>static</font> std::shared_ptr<font color='#5555FF'>&lt;</font>font<font color='#5555FF'>&gt;</font> f;
            auto_mutex <font color='#BB00BB'>M</font><font face='Lucida Console'>(</font>m<font face='Lucida Console'>)</font>;
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>f.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
                f.<font color='#BB00BB'>reset</font><font face='Lucida Console'>(</font><font color='#0000FF'>new</font> default_font<font face='Lucida Console'>)</font>;

            <font color='#0000FF'>return</font> f;
        <b>}</b>

        ~<b><a name='default_font'></a>default_font</b><font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font>
        <b>{</b>
            <font color='#0000FF'>delete</font> [] l;
        <b>}</b>

        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='height'></a>height</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font color='#979000'>16</font>; <b>}</b>

        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='ascender'></a>ascender</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font color='#979000'>12</font>; <b>}</b>

        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='left_overflow'></a>left_overflow</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font color='#979000'>1</font>; <b>}</b>

        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='right_overflow'></a>right_overflow</b> <font face='Lucida Console'>(</font>
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> <font color='#979000'>2</font>; <b>}</b>

        <font color='#0000FF'><u>bool</u></font> <b><a name='has_character'></a>has_character</b> <font face='Lucida Console'>(</font>
            unichar ch
        <font face='Lucida Console'>)</font><font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ch <font color='#5555FF'>&lt;</font> <font color='#979000'>256</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> <font face='Lucida Console'>(</font>l[ch].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> l[ch].<font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font> <font color='#979000'>true</font>;
            <font color='#0000FF'>else</font>
                <font color='#0000FF'>return</font> <font color='#979000'>false</font>;
        <b>}</b>

        <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font>
            unichar ch
        <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>if</font><font face='Lucida Console'>(</font>ch <font color='#5555FF'>&lt;</font> <font color='#979000'>256</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font> l[ch];
            <font color='#0000FF'>return</font> l[<font color='#979000'>0</font>]; <font color='#009900'>// just return one of the empty characters in this case 
</font>        <b>}</b>
    <b>}</b>;


<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
    <font color='#0000FF'>class</font> <b><a name='bdf_font'></a>bdf_font</b> : <font color='#0000FF'>public</font> font
    <b>{</b>
    
    <font color='#0000FF'>public</font>:
        <b><a name='bdf_font'></a>bdf_font</b><font face='Lucida Console'>(</font> <font color='#0000FF'><u>long</u></font> default_char_ <font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font> <font face='Lucida Console'>)</font>;
    
        <font color='#0000FF'><u>long</u></font> <b><a name='read_bdf_file'></a>read_bdf_file</b><font face='Lucida Console'>(</font> std::istream<font color='#5555FF'>&amp;</font> in, unichar max_enc, unichar min_enc <font color='#5555FF'>=</font> <font color='#979000'>0</font> <font face='Lucida Console'>)</font>;
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='height'></a>height</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>return</font> fbb.<font color='#BB00BB'>height</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
        <b>}</b>
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='ascender'></a>ascender</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>return</font> std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font> <font color='#979000'>0</font>L, <font color='#979000'>1</font> <font color='#5555FF'>-</font> fbb.<font color='#BB00BB'>top</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;
        <b>}</b>
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='left_overflow'></a>left_overflow</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>return</font> std::<font color='#BB00BB'>max</font><font face='Lucida Console'>(</font> <font color='#979000'>0</font>L, <font color='#5555FF'>-</font>fbb.<font color='#BB00BB'>left</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>;
        <b>}</b>
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> <b><a name='right_overflow'></a>right_overflow</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>return</font> right_overflow_;
        <b>}</b>
        <font color='#0000FF'>const</font> letter<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b>[] <font face='Lucida Console'>(</font> unichar uch <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font> <font color='#5555FF'>!</font><font color='#BB00BB'>has_character</font><font face='Lucida Console'>(</font>uch<font face='Lucida Console'>)</font> <font face='Lucida Console'>)</font>
            <b>{</b>
                <font color='#0000FF'>return</font> gl[default_char];
            <b>}</b>
            <font color='#0000FF'>return</font> gl[uch];
        <b>}</b>

        <font color='#0000FF'><u>bool</u></font> <b><a name='has_character'></a>has_character</b> <font face='Lucida Console'>(</font>
            unichar ch
        <font face='Lucida Console'>)</font><font color='#0000FF'>const</font>
        <b>{</b>
            <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ch <font color='#5555FF'>&lt;</font> gl.<font color='#BB00BB'>size</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&amp;</font><font color='#5555FF'>&amp;</font> <font face='Lucida Console'>(</font>gl[ch].<font color='#BB00BB'>width</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> gl[ch].<font color='#BB00BB'>num_of_points</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
                <font color='#0000FF'>return</font> <font color='#979000'>true</font>;
            <font color='#0000FF'>else</font>
                <font color='#0000FF'>return</font> <font color='#979000'>false</font>;
        <b>}</b>

        <font color='#0000FF'><u>void</u></font> <b><a name='adjust_metrics'></a>adjust_metrics</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>;
    <font color='#0000FF'>private</font>:

        <font color='#0000FF'><u>bool</u></font> <b><a name='bitmap_to_letter'></a>bitmap_to_letter</b><font face='Lucida Console'>(</font> array2d<font color='#5555FF'>&lt;</font><font color='#0000FF'><u>char</u></font><font color='#5555FF'>&gt;</font><font color='#5555FF'>&amp;</font> bitmap, unichar enc, <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> width, <font color='#0000FF'><u>int</u></font> x_offset, <font color='#0000FF'><u>int</u></font> y_offset <font face='Lucida Console'>)</font>;

        array<font color='#5555FF'>&lt;</font>letter<font color='#5555FF'>&gt;</font> gl;
        unichar default_char; <font color='#009900'>// if (is_intialized == true), then this MUST be an actual glyph
</font>        <font color='#0000FF'><u>bool</u></font> is_initialized;
        rectangle fbb;
        <font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>long</u></font> right_overflow_;
    
        <font color='#0000FF'><u>unsigned</u></font> global_width;
        <font color='#0000FF'><u>bool</u></font> has_global_width;
        <font color='#0000FF'><u>long</u></font> specified_default_char;
    
        <b><a name='bdf_font'></a>bdf_font</b><font face='Lucida Console'>(</font> bdf_font<font color='#5555FF'>&amp;</font> <font face='Lucida Console'>)</font>;      <font color='#009900'>// copy constructor
</font>        bdf_font<font color='#5555FF'>&amp;</font> <b><a name='operator'></a>operator</b><font color='#5555FF'>=</font><font face='Lucida Console'>(</font> bdf_font<font color='#5555FF'>&amp;</font> <font face='Lucida Console'>)</font>;  <font color='#009900'>// assignment operator
</font>    
    <b>}</b>;
    
<font color='#009900'>// ----------------------------------------------------------------------------------------
</font>
<b>}</b>

<font color='#0000FF'>#ifdef</font> NO_MAKEFILE
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='fonts.cpp.html'>fonts.cpp</a>"
<font color='#0000FF'>#endif</font>

<font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_FONTs_
</font>

</pre></body></html>